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    Low thermal expansion Ni-base superalloy
    6.
    发明授权
    Low thermal expansion Ni-base superalloy 有权
    低热膨胀Ni基超合金

    公开(公告)号：US08491838B2

    公开(公告)日：2013-07-23

    申请号：US11808614

    申请日：2007-06-12

    申请人： Shuji Hamano ,  Shigeki Ueta ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Takashi Nakano ,  Shin Nishimoto

    发明人： Shuji Hamano ,  Shigeki Ueta ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Takashi Nakano ,  Shin Nishimoto

    IPC分类号： C22C19/05

    CPC分类号： C22C19/056 ,  C22C19/055

    摘要： The present invention relates to a low thermal expansion Ni-base superalloy containing, in terms of mass %, C: 0.15% or less; Si: 1% or less; Mn: 1% or less; Cr: 5% or more but less than 20%; at least one of Mo, W and Re, in which Mo+½(W+Re) is 5% or more but less than 20%; W: 10% or less; Al: 0.1 to 2.5%; Ti: 0.10 to 0.95%; Nb+½Ta: 1.5% or less; B: 0.001 to 0.02%; Zr: 0.001 to 0.2%; Fe: 4.0% or less; and a balance of inevitable impurities and Ni, in which the total amount of Al, Ti, Nb and Ta is 2.0 to 6.5% in terms of atomic %. The low thermal expansion Ni-base superalloy of the present invention has a thermal expansion coefficient almost equal to that of 12 Cr ferritic steel, excellent high temperature strength, excellent corrosion and oxidation resistance, good hot-workability, and excellent weldability.

    摘要翻译： 本发明涉及以质量％计含有C：0.15％以下的低热膨胀性Ni基超合金。 Si：1％以下; Mn：1％以下; Cr：5％以上但小于20％; Mo，W和Re中的至少一种，其中Mo + 1/2（W + Re）为5％以上但小于20％; W：10％以下; Al：0.1〜2.5％ Ti：0.10〜0.95％ Nb +½Ta：1.5％以下; B：0.001〜0.02％; Zr：0.001〜0.2％ Fe：4.0％以下; 余量为不可避免的杂质和Ni，其中Al，Ti，Nb和Ta的总量按原子％计为2.0〜6.5％。 本发明的低热膨胀性Ni基超合金的热膨胀系数几乎与12Cr铁素体钢的热膨胀系数相当，耐高温性优异，耐腐蚀性，耐氧化性优异，热加工性良好，焊接性优异。

    Low thermal expansion Ni-base superalloy
    7.
    发明申请
    Low thermal expansion Ni-base superalloy 有权
    低热膨胀Ni基超合金

    公开(公告)号：US20070284018A1

    公开(公告)日：2007-12-13

    申请号：US11808614

    申请日：2007-06-12

    申请人： Shuji Hamano ,  Shigeki Ueta ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Takashi Nakano ,  Shin Nishimoto

    发明人： Shuji Hamano ,  Shigeki Ueta ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Takashi Nakano ,  Shin Nishimoto

    IPC分类号： C22C19/05

    CPC分类号： C22C19/056 ,  C22C19/055

    摘要： The present invention relates to a low thermal expansion Ni-base superalloy containing, in terms of mass %, C: 0.15% or less; Si: 1% or less; Mn: 1% or less; Cr: 5% or more but less than 20%; at least one of Mo, W and Re, in which Mo+½(W+Re) is 5% or more but less than 20%; W: 10% or less; Al: 0.1 to 2.5%; Ti: 0.10 to 0.95%; Nb+½Ta: 1.5% or less; B: 0.001 to 0.02%; Zr: 0.001 to 0.2%; Fe: 4.0% or less; and a balance of inevitable impurities and Ni, in which the total amount of Al, Ti, Nb and Ta is 2.0 to 6.5% in terms of atomic %. The low thermal expansion Ni-base superalloy of the present invention has a thermal expansion coefficient almost equal to that of 12 Cr ferritic steel, excellent high temperature strength, excellent corrosion and oxidation resistance, good hot-workability, and excellent weldability.

    摘要翻译： 本发明涉及以质量％计含有C：0.15％以下的低热膨胀性Ni基超合金。 Si：1％以下; Mn：1％以下; Cr：5％以上但小于20％; Mo，W和Re中的至少一种，其中Mo + 1/2（W + Re）为5％以上但小于20％; W：10％以下; Al：0.1〜2.5％ Ti：0.10〜0.95％ Nb +½Ta：1.5％以下; B：0.001〜0.02％; Zr：0.001〜0.2％ Fe：4.0％以下; 余量为不可避免的杂质和Ni，其中Al，Ti，Nb和Ta的总量按原子％计为2.0〜6.5％。 本发明的低热膨胀性Ni基超合金的热膨胀系数几乎与12Cr铁素体钢的热膨胀系数相当，耐高温性优异，耐腐蚀性，耐氧化性优异，热加工性良好，焊接性优异。

    Method for producing low thermal expansion Ni-base superalloy
    8.
    发明申请
    Method for producing low thermal expansion Ni-base superalloy 有权
    生产低热膨胀Ni基超级合金的方法

    公开(公告)号：US20050236079A1

    公开(公告)日：2005-10-27

    申请号：US11115159

    申请日：2005-04-27

    申请人： Shigeki Ueta ,  Toshiharu Noda ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Ryotaro Magoshi ,  Shin Nishimoto

    发明人： Shigeki Ueta ,  Toshiharu Noda ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Ryotaro Magoshi ,  Shin Nishimoto

    IPC分类号： C22C19/03 ,  C22C19/05 ,  C22F1/00 ,  C22F1/10

    CPC分类号： C22C19/056 ,  C22C19/03 ,  C22C19/057 ,  C22C19/058 ,  C22F1/10

    摘要： The present invention provides a method for producing a low thermal expansion Ni-base superalloy, which includes: preparing an alloy including, by weight %, C: 0.15% or less, Si: 1% or less, Mn: 1% or less, Cr: 5 to 20%, at least one of Mo, W and Re, which satisfy the relationship Mo+½(W+Re): 17 to 27%, Al: 0.1 to 2%, Ti: 0.1 to 2%, Nb and Ta, which satisfy the relationship Nb+Ta/2: 1.5% or less, Fe: 10% or less, Co: 5% or less, B: 0.001 to 0.02%, Zr: 0.001 to 0.2%, a reminder of Ni and inevitable components; subjecting the alloy to a solution heat treatment under the condition of at a temperature of 1000 to 1200° C.; subjecting the alloy to either a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides under the conditions of at a temperature of not less than 850° C. and less than 1000° C. and for 1 to 50 hours, or a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides by cooling from the temperature in the solution heat treatment to 850° C. at a cooling rate of 100° C. or less per hour; subjecting the alloy to a first aging treatment for precipitating γ′ phase under the conditions of at a temperature of 720 to 900° C. and for 1 to 50 hours; and subjecting the alloy to a second aging treatment for precipitating A2B phase under the conditions of at a temperature of 550 to 700° C. and for 5 to 100 hours.

    摘要翻译： 本发明提供一种低热膨胀型Ni基超合金的制造方法，其特征在于，包括：以重量％计含有C：0.15％以下，Si：1％以下，Mn：1％以下的合金， Cr：5〜20％，满足Mo +½（W + Re）：17〜27％，Al：0.1〜2％，Ti：0.1〜2％的Mo，W和Re中的至少一种，Nb 和Ta，其满足Nb + Ta / 2：1.5％以下的关系，Fe：10％以下，Co：5％以下，B：0.001〜0.02％，Zr：0.001〜0.2％，提示Ni 和不可避免的组成部分; 在1000〜1200℃的温度下对合金进行固溶热处理; 使合金进行碳化物稳定化处理，在晶界上形成凝集碳化物，并在不低于850℃且小于1000℃的温度和1至50小时的条件下稳定碳化物，或 碳化物稳定化处理，用于通过从固溶热处理中的温度冷却至850℃，以每小时100℃或更低的冷却速度使晶界上的聚集碳化物稳定化; 在720〜900℃的温度和1〜50小时的条件下对合金进行第一时效处理以使γ相析出; 并在550-700℃的温度和5〜100小时的条件下对该合金进行第二时效处理以沉淀A 2 B相。

    Method for producing low thermal expansion Ni-base superalloy
    9.
    发明授权
    Method for producing low thermal expansion Ni-base superalloy 有权
    生产低热膨胀Ni基超级合金的方法

    公开(公告)号：US08083874B2

    公开(公告)日：2011-12-27

    申请号：US11115159

    申请日：2005-04-27

    申请人： Shigeki Ueta ,  Toshiharu Noda ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Ryotaro Magoshi ,  Shin Nishimoto

    发明人： Shigeki Ueta ,  Toshiharu Noda ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Ryotaro Magoshi ,  Shin Nishimoto

    IPC分类号： C22F1/10 ,  C22C19/05

    CPC分类号： C22C19/056 ,  C22C19/03 ,  C22C19/057 ,  C22C19/058 ,  C22F1/10

    摘要： A method for producing a low thermal expansion Ni-base superalloy including the steps of subjecting the alloy to a solution heat treatment under the condition of at a temperature of 1000 to 1200° C. and subjecting the alloy to either a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides under the conditions of at a temperature of not less than 850° C. and less than 1000° C. and for 1 to 50 hours, or a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides by cooling from the temperature in the solution heat treatment to 850° C. at a cooling rate of 100° C. or less per hour. The method also including the steps of subjecting the alloy to a first aging treatment for precipitating y′ phase under the conditions of at a temperature of 720 to 900° C. and for 1 to 50 hours, and subjecting the alloy to a second aging treatment for precipitating A2B phase under the conditions of at a temperature of 550 to 700° C. and for 5 to 100 hours.

    摘要翻译： 一种生产低热膨胀Ni基超合金的方法，包括以下步骤：在1000-1200℃的温度下对合金进行固溶热处理，并对合金进行碳化物稳定化处理 在不低于850℃，小于1000℃的温度和1〜50小时的条件下，在晶界上凝集的碳化物并使碳化物稳定，或者在晶界上形成碳化碳的碳化物稳定化处理 并且通过从固溶热处理中的温度冷却至850℃，以每小时100℃或更低的冷却速度来稳定碳化物。 该方法还包括以下步骤：在720至900℃的温度和1至50小时的条件下对合金进行第一时效处理以沉淀y相，并对合金进行第二时效处理 用于在550-700℃的温度和5-100小时的条件下沉淀A2B相。